Home / 83,401.10-125,101.65-21,071.60

Finding the Fourth Proportional to 83,401.10, 125,101.65 and 21,071.60

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Solution

The fourth proportional to 83,401.10, 125,101.65 and 21,071.60 is: 31,607.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,401.10 : 125,101.65 = 21,071.60 : x
  2. Step 2: Convert to fraction form
    83,401.10/125,101.65 = 21,071.60/x
  3. Step 3: Cross multiply
    83,401.10x = 125,101.65 × 21,071.60
  4. Step 4: Simplify right side
    83,401.10x = 2,636,091,928.14
  5. Step 5: Solve for x
    x = 2,636,091,928.14/83,401.10
  6. Step 6: Final answer
    x = 31,607.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.